Ford Mustang (1999-2004) Service Manual: Transmission Description (Description and Operation)
The 4R70W has the following features:
- Wide ratio gears
- Four speeds
- Rear wheel drive
- Automatic
- Electronic shift
- Torque converter clutch control
- Line pressure controls
The transmission uses Ravigneaux-style double-pinion gearset with two bands, one one-way roller clutch, one mechanical diode and four friction clutches to produce four forward gears and Reverse.
4R70W Automatic Transmission

Automatic Transaxle/Transmission
General Specifications
a - MERCON V is not interchangeable at this time with the current MERCON
fluids. Check the
transmission fluid level indicator to determine the correct fluid and refer to
the ...
Identification Tags
All vehicles are equipped with a Vehicle Certification Label, located
on the driver side door lock post.
For correct transmission identification, refer to the code in the space
marked TR.
...
Other materials:
Transmission (Assembly)
Special Tool(s)
Dial Indicator with Bracketry
100-002 (TOOL-4201-C) or
Equivalent
Gauge, Clutch Housing
308-021 (T75L-4201-A)
Extension Housing Seal
Replacer
308-227 (T94P-7657-A)
Holding Fixture
307-0 ...
Fuel Pressure Sensor
Material
Item
Specification
Super Premium SAE 5W-20
Motor Oil
XO-5W20-DSP or equivalent
WSS-M2C914-
A
Removal
WARNING: Do not smoke or carry lighted tobacco or open flame of
any type when
working on or near any fuel related compo ...
System Air Flow Description
MAX A/C
When MAX A/C is selected:
The air inlet door vacuum control motor is at full vacuum, closing
off outside air and admitting
only recirculated air.
The panel/defrost door vacuum control motor is at full vacuum and
the panel/floor door vacu ...
